Answer / mrinal

The current currying of cables will change depending upon
the site temperature (location of site), type of run(it
will run through DUCT, TRENCH, BURRIED ect.), number of
tray, depth of trench, distance between cables. Considering
this condition actual current currying capacity of cable
reduce than current currying capacity (which given to cable
cataloge) this is called deraing.

a motor's measured current is 45amp,whereas the rated current is 38 amps but still it is running ,how?

5 Answers  

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Hi everyone, I'm Lachuu, recently joined automation company as PLC Engineer. I have certain basic question, I request all big gurus and seniors to answer these question. Because this will be very helpful to me as well starters like me. How to design a control circuit (ex: pick & place - my current project) Yamaha robot PxYx series controller RCX222, using 6 cylinder double acting, plc keyence kv p16r 2 expansion unit for input and output each. How to select panel terminal mcb elcb powersupply. My main concern in some projects how to select dc power supply, mcb rcb(I came across dif bt b c d curves, but stil confusing, pls help me :-(. I would really appreciate all who are going respond to this question.

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How vaccum is formed to create a vaccum interrupter or anything related with vaccum?

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How much pf maintan in dg set in 6o% load,when Dg runnig Neutaal Earthing removed what happen.

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If current and resistance in a circuit is increased by 20%, what will happen to its voltage drop??

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I have a drawing of a wound rotor induction motor for a crane. This crane motor has 5 forward speeds & 5 reverse speed implemented of course with different amount of resistance for each speed setting selected. What has got me scratching around is the fact that 8 of the 10 speed selections switch in uneven (unbalanced) amounts of resistances on each of the 3 connections to the motor's rotor.Can this be possible? I would have assumed this would produce unbalanced rotor currents and therefore vibration in the motor. I would greatly appreciate anyone's comments on this. Many thanks, Confused.

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what is the difference in between short time and continuous rating?

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WHAT IS THE REASON FOR THE GROUND PIN IS BIGGER IN SIZE COMPARING TO OTHER PINS?

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What would be the steps and parameters in case if a fault occurs in transmission line at a distance far from the generating station?

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why tertiary winding is used in transformer with diagram?

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What tests should i carry over on a newly rewinded DC Generator with voltage rating of 38 volts and current rating of 350 amps, to certify that the machine is OK?

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What happen if field ckt is open when a sailent pole alternator connected to infinite bus

3 Answers   Bhel, Nilkamal,

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